1. If a x 10" is scientific notation, then a must be between 1 and
9 10
100
2. Which is larger, 3,2 x 10* or 3.2 x
1057
3.2 x 10°
3.2 x 10
3. Which is larger, 3.3 x 10 or 3.1 x
10%
3.3 x 10
3.1 x 10

One expression below in undefined, and the other expression has a well defined value. which expression is undefined and explain why it has no value. which expression is defined? what is the value of that expression and how do you know? what is a different expression using a trig inverse function that is also undefined?

Each month, a shopkeeper spends 5x + 14 dollars on rent and electricity. if he spends 3x−5 dollars on rent, how much does he spend on electricity? for which value(s) of x is the amount the shopkeeper spends on electricity less than $100? explain how you found the value(s).

The random variable x represents the number of phone calls an author receives in a day, and it has a poisson distribution with a mean of 8.7 calls. what are the possible values of x